NotificationCenter.cpp

//// NotificationCenter.cpp//// $Id: //poco/1.3/Foundation/src/NotificationCenter.cpp#3 $//// Library: Foundation// Package: Notifications// Module: NotificationCenter//// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.// and Contributors.//// Permission is hereby granted, free of charge, to any person or organization// obtaining a copy of the software and accompanying documentation covered by// this license (the "Software") to use, reproduce, display, distribute,// execute, and transmit the Software, and to prepare derivative works of the// Software, and to permit third-parties to whom the Software is furnished to// do so, all subject to the following:// // The copyright notices in the Software and this entire statement, including// the above license grant, this restriction and the following disclaimer,// must be included in all copies of the Software, in whole or in part, and// all derivative works of the Software, unless such copies or derivative// works are solely in the form of machine-executable object code generated by// a source language processor.// // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER// DEALINGS IN THE SOFTWARE.//#include "Poco/NotificationCenter.h"#include "Poco/Notification.h"#include "Poco/Observer.h"#include "Poco/AutoPtr.h"#include "Poco/SingletonHolder.h"namespace Poco {
NotificationCenter::NotificationCenter()
{
}
00052 NotificationCenter::~NotificationCenter()
{
}
00057voidNotificationCenter::addObserver(constAbstractObserver& observer)
{
Mutex::ScopedLock lock(_mutex);
_observers.push_back(observer.clone());
}
00064voidNotificationCenter::removeObserver(constAbstractObserver& observer)
{
Mutex::ScopedLock lock(_mutex);
for (ObserverList::iterator it = _observers.begin(); it != _observers.end(); ++it)
{
if (observer.equals(**it))
{
_observers.erase(it);
return;
}
}
}
00078voidNotificationCenter::postNotification(Notification::Ptr pNotification)
{
poco_check_ptr (pNotification);
ScopedLockWithUnlock<Mutex> lock(_mutex);
ObserverList observersToNotify(_observers);
lock.unlock();
for (ObserverList::iterator it = observersToNotify.begin(); it != observersToNotify.end(); ++it)
{
(*it)->notify(pNotification);
}
}
00092boolNotificationCenter::hasObservers() const{
Mutex::ScopedLock lock(_mutex);
return !_observers.empty();
}
00100 std::size_t NotificationCenter::countObservers() const{
Mutex::ScopedLock lock(_mutex);
return _observers.size();
}
00108NotificationCenter& NotificationCenter::defaultCenter()
{
staticSingletonHolder<NotificationCenter> sh;
return *sh.get();
}
} // namespace Poco